CUED Publications database

The experiment to evaluate the AC loss of 2G HTS windings in the application of rotating electric machines

Chen, Y and Yuan, W and Zhang, M and Coombs, TA (2012) The experiment to evaluate the AC loss of 2G HTS windings in the application of rotating electric machines. IEEE Transactions on Applied Superconductivity, 22. ISSN 1051-8223

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Abstract

This paper presents the design of an AC loss experiment using nitrogen boil-off method. This experiment is aimed at exploring the AC loss of HTS double race-track coils which will be installed on the rotor of a wind turbine generator. The operating environment is simulated by designing a cryostat with rotating magnetic field windings. Apart from the fact that the alternating magnetic field causes most of AC loss on the HTS coils, we also believe that the DC background field would be another important factor causing AC loss if the HTS coil is experiencing by both alternating magnetic field in the perpendicular direction and DC background field in the parallel direction. In order to perform the boil-off measurement, we present the method to estimate the heat leakage in the cryostat which might cause errors to the measurement. © 2011 IEEE.

Item Type: Article
Uncontrolled Keywords: AC loss cryostat superconductor thermal
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:21
Last Modified: 08 Dec 2014 02:32
DOI: 10.1109/TASC.2012.2186550